Answer :
Final answer:
One liter of Lactated Ringer's Injection contains 1.36 milliequivalents (mEq) of calcium.
Explanation:
In order to answer this question, we need to determine how many milliequivalents (mEq) of calcium are in each milligram of calcium chloride dihydrate. The chemical formula for calcium chloride dihydrate is CaCl2*2H2O, which means its molecular weight is (40.08 * 1) + (35.45 * 2) + ((1.01 * 2 + 15.9994 * 1) * 2) = 147.02 g/mol. Therefore, 20 mg of calcium chloride dihydrate is approximately 0.136 mmol. Since each molecule of calcium chloride dihydrate contains one atom of calcium, this is also 0.136 mmol of calcium. As 1 mmol is equivalent to 1 mEq, so 0.136 mmol is equal to 0.136 mEq. Because this is the amount present in 100 mL of IV fluid, we need to multiply by 10 to get the amount in one liter, which gives 1.36 mEq.
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